package servlet;
import enity.User;
import com.fasterxml.jackson.databind.ObjectMapper;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
@WebServlet("/userInfo")
public class UserInfoServlet extends HttpServlet {
    private ObjectMapper objectMapper=new ObjectMapper();
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        HttpSession session=req.getSession(false);
        if(session==null){
            resp.setContentType("text/html;charset=utf8");
            resp.getWriter().write("当前用户未登录");
            return;
        }
        User user=(User)session.getAttribute("user");
        if(user==null){
            resp.setContentType("text/html;charset=utf8");
            resp.getWriter().write("当前用户未登录");
            return;
        }
        resp.setContentType("application/json; charset=utf8");
        user.setPassword("");
        String respJson=objectMapper.writeValueAsString(user);
        System.out.println("__________________________________");
        resp.getWriter().write(respJson);
    }
}
